Retell AI Phone Number API
The Phone Number API from Retell AI — 6 operation(s) for phone number.
Retell AI Phone Number API is one of 11 APIs that Retell AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.
Tagged areas include Phone Number. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, an AsyncAPI specification, and rate-limit docs.
This API exposes 6 operations across 6 paths, and defines 4 schemas. It is described by OpenAPI 3.0.1, at version 2.0.
Requests are made against a single base URL, https://api.retellai.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Retell AI Phone Number API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (apiKey) (api_key).
By default, every request must be authenticated.
api_key— Retell API key, sent as: Authorization: Bearer
Paths & Operations 6
Across 6 paths, the API surfaces 6 operations — 1 DELETE, 2 GET, 1 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.
Schemas 4
The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are PhoneNumberResponse (7 properties), ImportPhoneNumberRequest (7 properties), CreatePhoneNumberRequest (5 properties), UpdatePhoneNumberRequest (3 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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